Karan980 opened a new pull request #4093:
URL: https://github.com/apache/carbondata/pull/4093

    ### Why is this PR needed?
   Concurrent compaction was failing when run in parallel with load. During 
load we acquire SegmentLock for a particular segment, and when this same lock 
we try to acquire during compaction, we were not able to acquire this lock and 
compaction fails.
    ### What changes were proposed in this PR?
   Skipped compaction for segments for which we are not able to acquire the 
SegmentLock instead of throwing the exception.
    ### Does this PR introduce any user interface change?
    - No
    ### Is any new testcase added?
    - No

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